1.Употребите глагол в Present Perfect или Present Perfect Continuous.

1. I (work) in the garden all day and I need a rest.

2. She (make) three cakes. They look delicious!

3. David feels great these days. He (get) up early lately.

4. We (always / hate) rush hour traffic.

5. Recently, I (study) a lot. My exams are in a few weeks.

6. We (write) this book for months and months.

7. I (always / love) chocolate.

8. I (want) to go back to university for a long time.

2. Переведите предложения на английский язык, употребив глагол в Present Perfect или Present Perfect Continuous.

1. Мэри занимается английским с самого утра.


2. Она уже сделала 10 упражнений.


3. Анна выучила 20 английских слов сегодня.


4. Сем сочиняет стихи с семи лет.

5. Он уже сочинил 100 стихотворений.


6. Отец чувствует себя усталым, так как он вел машину шесть часов сегодня.

1) Density is measured in kilograms per cubic meter.

2) Most materials have a higher density than water and sink in water.

3) The density of the material is very important, especially in aviation.

4) Young's modulus is the ratio of the applied force to the elastic deformation of a given material.

5) The more rigid the metal, the less it deforms under load.

6) when the metal is stretched, it first flows, that is, it is plastically deformed.

7) Lead, copper, aluminum and gold are the most malleable metals.

8) Creep resistance is a very important property of materials used in aircraft engines.

Объяснение:

Hello dear friend daniel! i would like to congratulate you with christmas! i think christmas is a wonderful holiday. during this festival, the whole family gathers at the table.british cuisine can surprise no less interesting: christmas bread, roasted pig's head, english pudding in the preparation of the participation of all members of the seven, and the cake with the predictions. the prudent owner according to ancient tradition lays in the dough pie coin, ring, bob or button. each item has its value: marriage, happiness, wealth or poverty (so some people are lucky, so lucky). and how do you celebrate the feast of christmas? you, too, the whole family gathered at the round table? and you launch fireworks? well, i gotta go. rather answer my letter. best wishes!